/*
paper:
"Estimating fuel efficiency while accounting for dynamic fleet management:
testing the effects of fuel price signals and fleet rollover"

-------
Table 3
-------

data set cae_2009_fuel_share.dta

to run this command, you must install the following stata modules:

xtivreg2
ssc install xtivreg2

esttab
ssc install estout

pdslasso
ssc install pdslasso

*/

*open base
use cae_2009_fuel_share, clear

est clear

*--------------------------------------------------------------------------------------------------------------
*table 3 - column 1
*--------------------------------------------------------------------------------------------------------------
ivlasso FUEL FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND AGE (airl_*), fe cluster(city_pair)
xtivreg2 ///
		FUEL ///
        FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND AGE ///
        airl_0002 airl_0003 airl_0004 airl_0005 airl_0006 airl_0008 airl_0009 airl_0010 airl_0011 airl_0013 ///
        airl_0014 airl_0017 airl_0018 airl_0019 airl_0021 airl_0022 airl_0023 airl_0026 airl_0027 airl_0028 ///
        airl_0030 airl_0031 airl_0032 ///
		, fe bw(4) rob	
est store col1	
	
*--------------------------------------------------------------------------------------------------------------
*table 3 - column 2
*--------------------------------------------------------------------------------------------------------------
ivlasso FUEL FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND AGE FLMOD (airl_*), fe cluster(city_pair)
xtivreg2 ///
		FUEL ///
		FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND AGE FLMOD	 ///
        airl_0002 airl_0003 airl_0004 airl_0005 airl_0006 airl_0008 airl_0009 airl_0010 airl_0011 airl_0013 ///
        airl_0014 airl_0017 airl_0018 airl_0019 airl_0021 airl_0022 airl_0023 airl_0026 airl_0027 airl_0028 ///
        airl_0030 airl_0031 airl_0032 ///
		, fe bw(4) rob	
est store col2

*--------------------------------------------------------------------------------------------------------------
*table 3 - column 3
*--------------------------------------------------------------------------------------------------------------
ivlasso FUEL FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND AGE FLMOD (airl_*) ///
		(HHI = ivde_* ivbl_* ivha_*), fe cluster(city_pair)
xtivreg2 ///
		FUEL ///
		FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND AGE FLMOD	 ///
        airl_0002 airl_0003 airl_0004 airl_0005 airl_0006 airl_0008 airl_0009 airl_0010 airl_0011 airl_0013 ///
        airl_0014 airl_0017 airl_0018 airl_0019 airl_0021 airl_0022 airl_0023 airl_0026 airl_0027 airl_0028 ///
        airl_0030 airl_0031 airl_0032 ///
		(HHI = ///
        ivde_0012 ivde_0137 ivbl_0001 ivbl_0003 ivbl_0005 ivbl_0007 ivbl_0015 ///
		) ///
		, fe bw(4) rob	
est store col3
	
*--------------------------------------------------------------------------------------------------------------
*table 3 - column 4
*--------------------------------------------------------------------------------------------------------------
ivlasso FUEL FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND LCC AGE FLMOD (airl_*) ///
		(HHI = ivde_* ivbl_* ivha_*), fe cluster(city_pair)
xtivreg2 ///
		FUEL ///
		FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND LCC AGE FLMOD	 ///
        airl_0002 airl_0003 airl_0004 airl_0005 airl_0006 airl_0008 airl_0009 airl_0010 airl_0011 airl_0013 ///
        airl_0014 airl_0017 airl_0018 airl_0019 airl_0021 airl_0022 airl_0023 airl_0026 airl_0027 airl_0028 ///
        airl_0030 airl_0031 airl_0032 ///
		(HHI = ///
        ivde_0012 ivde_0137 ivbl_0001 ivbl_0003 ivbl_0005 ivbl_0007 ivbl_0015 ///
		) ///
		, fe bw(4) rob	
est store col4

*--------------------------------------------------------------------------------------------------------------
*table 3 - column 5
*--------------------------------------------------------------------------------------------------------------
ivlasso FUEL FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND LCC FUELP_2ylag FUELP_3ylag FUELP_4ylag (airl_*) ///
		(HHI = ivde_* ivbl_* ivha_*), fe cluster(city_pair)
xtivreg2 ///
		FUEL ///
		FLTIME FREQ ASIZE MASS TPR SLOT HUB TREND LCC FUELP_2ylag	 ///
		FUELP_3ylag FUELP_4ylag 	 ///
        airl_0001 airl_0002 airl_0003 airl_0004 airl_0005 airl_0006 airl_0008 airl_0009 airl_0011 airl_0013 ///
        airl_0016 airl_0017 airl_0018 airl_0021 airl_0023 airl_0026 airl_0027 airl_0028 airl_0030 airl_0031 ///
        airl_0032 ///
		(HHI = ///
        ivde_0137 ivbl_0001 ivbl_0005 ivbl_0007 ivbl_0030 ivbl_0059 ///
		)	 ///
		, fe bw(4) rob	
est store col5

*--------------------------------------------------------------------------------------------------------------
*table 3 - column 6
*--------------------------------------------------------------------------------------------------------------
ivlasso FUEL FLTIME FREQ ASIZE MASS TPR SLOT HUB LCC FUELP_2ylag FUELP_3ylag FUELP_4ylag (airl_* time_*) ///
		(HHI = ivde_* ivbl_* ivha_*), fe cluster(city_pair)
xtivreg2 ///
		FUEL ///
		FLTIME FREQ ASIZE MASS TPR SLOT HUB LCC FUELP_2ylag FUELP_3ylag	 ///
		FUELP_4ylag ///
        airl_0002 airl_0003 airl_0004 airl_0005 airl_0006 airl_0009 airl_0011 airl_0012 airl_0013 airl_0014 ///
        airl_0015 airl_0017 airl_0018 airl_0019 airl_0021 airl_0023 airl_0026 airl_0027 airl_0028 airl_0030 ///
        airl_0031 airl_0032 time_0049 time_0050 time_0051 time_0052 time_0053 time_0054 time_0055 time_0056 ///
        time_0057 time_0058 time_0059 time_0060 time_0061 time_0062 time_0063 time_0064 time_0065 time_0066 ///
        time_0067 time_0068 time_0069 time_0070 time_0071 time_0072 time_0073 time_0074 time_0076 time_0077 ///
        time_0078 time_0079 time_0080 time_0081 time_0082 time_0083 time_0084 time_0085 time_0086 time_0087 ///
        time_0088 time_0089 time_0090 time_0091 time_0092 time_0093 time_0094 time_0095 time_0096 time_0097 ///
        time_0098 time_0099 time_0100 time_0101 time_0102 time_0103 time_0104 time_0105 time_0106 time_0107 ///
        time_0108 time_0109 time_0110 time_0111 time_0112 time_0113 time_0114 time_0115 time_0116 time_0117 ///
        time_0118 time_0119 time_0120 time_0121 time_0122 time_0123 time_0124 time_0125 time_0126 time_0127 ///
        time_0128 time_0129 time_0130 time_0131 time_0132 time_0133 time_0134 time_0135 time_0136 time_0137 ///
        time_0138 time_0139 time_0140 time_0141 time_0142 time_0143 time_0144 time_0145 time_0146 time_0147 ///
        time_0148 time_0149 time_0150 time_0151 time_0152 time_0153 time_0154 time_0155 time_0156 time_0157 ///
        time_0158 time_0159 time_0160 time_0161 time_0162 time_0163 time_0164 time_0165 time_0166 time_0167 ///
        time_0168 time_0169 time_0170 time_0171 time_0172 time_0173 time_0174 time_0175 time_0176 time_0177 ///
        time_0178 time_0179 time_0180 time_0181 time_0182 time_0183 time_0184 time_0185 time_0186 time_0187 ///
        time_0188 time_0189 time_0190 time_0191 time_0192 time_0193 time_0194 time_0195 time_0196 time_0197 ///
        time_0198 time_0199 time_0200 time_0201 time_0202 time_0203 time_0204 time_0205 time_0206 time_0207 ///
        time_0208 time_0209 time_0210 time_0211 time_0212 time_0213 time_0214 time_0215 time_0216 time_0217 ///
        time_0218 time_0219 time_0220 time_0221 time_0222 time_0223 time_0224 time_0225 time_0226 ///
		(HHI = ///
        ivbl_0001 ivbl_0005 ivbl_0007 ivbl_0030 ivbl_0059 ///
		)	 ///
		, fe bw(4) rob	
est store col6

*--------------------------------------------------------------------------------------------------------------
*table 3 - column 7
*--------------------------------------------------------------------------------------------------------------
ivlasso FUEL FLTIME FREQ ASIZE MASS ///
		(TPR SLOT HUB LCC FUELP_2ylag FUELP_3ylag FUELP_4ylag airl_* awyt_* dirq_*) ///
		(HHI = ivde_* ivbl_* ivha_*), fe cluster(city_pair)
xtivreg2 ///
		FUEL ///
		FLTIME FREQ ASIZE MASS TPR SLOT HUB LCC FUELP_3ylag FUELP_4ylag	 ///
        airl_0003 airl_0006 airl_0009 airl_0017 airl_0018 airl_0021 airl_0023 airl_0030 awyt_0050 awyt_0051 ///
        awyt_0062 awyt_0074 awyt_0079 awyt_0081 awyt_0085 awyt_0086 awyt_0087 awyt_0088 awyt_0094 awyt_0095 ///
        awyt_0110 awyt_0139 awyt_0140 awyt_0141 awyt_0142 awyt_0143 awyt_0144 awyt_0145 awyt_0147 awyt_0152 ///
        awyt_0160 awyt_0161 awyt_0162 awyt_0163 awyt_0164 awyt_0167 awyt_0168 awyt_0172 awyt_0173 awyt_0174 ///
        awyt_0175 awyt_0176 awyt_0177 awyt_0178 awyt_0179 awyt_0180 awyt_0181 awyt_0182 awyt_0183 awyt_0184 ///
        awyt_0185 awyt_0186 awyt_0188 awyt_0189 awyt_0190 awyt_0191 awyt_0192 awyt_0201 awyt_0202 awyt_0203 ///
        awyt_0204 awyt_0205 awyt_0206 awyt_0207 awyt_0208 awyt_0209 awyt_0210 awyt_0211 awyt_0212 awyt_0213 ///
        awyt_0214 awyt_0215 awyt_0216 awyt_0217 awyt_0219 awyt_0220 awyt_0221 awyt_0222 awyt_0223 awyt_0224 ///
        awyt_0278 awyt_0308 awyt_0336 awyt_0378 awyt_0391 awyt_0392 awyt_0393 awyt_0394 awyt_0395 awyt_0397 ///
        awyt_0398 awyt_0399 awyt_0402 awyt_0403 awyt_0404 awyt_0405 awyt_0411 awyt_0412 awyt_0414 awyt_0416 ///
        awyt_0417 awyt_0418 awyt_0547 awyt_0557 awyt_0558 awyt_0559 awyt_0584 awyt_0585 awyt_0586 awyt_0587 ///
        awyt_0588 awyt_0589 awyt_0590 awyt_0591 awyt_0592 awyt_0593 awyt_0594 awyt_0595 awyt_0596 awyt_0597 ///
        awyt_0598 awyt_0601 awyt_0603 awyt_0606 awyt_0609 awyt_0615 awyt_0619 awyt_0620 awyt_0621 awyt_0626 ///
        awyt_0631 awyt_0643 awyt_0677 awyt_0746 awyt_0784 awyt_0785 awyt_0788 awyt_0789 awyt_0790 awyt_0816 ///
        awyt_0817 awyt_0818 awyt_0819 awyt_0821 awyt_0822 awyt_0823 awyt_0825 awyt_0829 awyt_0830 awyt_0832 ///
        awyt_0833 awyt_0835 awyt_0837 awyt_0838 awyt_0839 awyt_0841 awyt_0842 awyt_0843 awyt_0845 awyt_0846 ///
        awyt_0847 awyt_0849 awyt_0850 awyt_0852 awyt_0853 awyt_0854 awyt_0855 awyt_0856 awyt_0859 awyt_0860 ///
        awyt_0863 awyt_0889 awyt_0894 awyt_0899 awyt_0900 awyt_0901 awyt_0953 awyt_0954 awyt_0955 awyt_0958 ///
        awyt_0961 awyt_0964 awyt_0976 awyt_0977 awyt_0987 awyt_0988 awyt_0989 awyt_0990 awyt_0991 awyt_0996 ///
        awyt_0998 awyt_0999 awyt_1002 awyt_1009 awyt_1010 awyt_1011 awyt_1012 awyt_1014 awyt_1015 awyt_1016 ///
        awyt_1017 awyt_1018 awyt_1020 awyt_1044 awyt_1045 awyt_1047 awyt_1048 awyt_1049 awyt_1051 awyt_1055 ///
        awyt_1060 awyt_1061 awyt_1065 awyt_1067 awyt_1068 awyt_1069 awyt_1070 awyt_1071 awyt_1072 awyt_1073 ///
        awyt_1074 awyt_1075 awyt_1079 awyt_1080 awyt_1081 awyt_1082 awyt_1083 awyt_1084 awyt_1089 awyt_1094 ///
        awyt_1095 awyt_1099 awyt_1101 awyt_1102 awyt_1103 awyt_1104 awyt_1106 awyt_1107 awyt_1109 awyt_1110 ///
        awyt_1113 awyt_1116 awyt_1117 awyt_1124 awyt_1125 awyt_1126 awyt_1127 awyt_1128 awyt_1129 awyt_1130 ///
        awyt_1192 awyt_1204 awyt_1206 awyt_1211 awyt_1212 awyt_1213 awyt_1214 awyt_1216 awyt_1217 awyt_1218 ///
        awyt_1222 awyt_1224 awyt_1225 awyt_1238 awyt_1239 awyt_1240 awyt_1244 awyt_1247 awyt_1248 awyt_1267 ///
        awyt_1269 awyt_1270 awyt_1271 awyt_1272 awyt_1273 awyt_1274 awyt_1275 awyt_1279 awyt_1282 awyt_1289 ///
        awyt_1290 awyt_1291 awyt_1292 awyt_1293 awyt_1294 awyt_1295 awyt_1296 awyt_1297 awyt_1298 awyt_1299 ///
        awyt_1300 awyt_1301 awyt_1302 awyt_1303 awyt_1304 awyt_1305 awyt_1306 awyt_1307 awyt_1308 awyt_1309 ///
        awyt_1310 awyt_1311 awyt_1312 awyt_1313 awyt_1315 awyt_1316 awyt_1318 awyt_1319 awyt_1320 awyt_1321 ///
        awyt_1322 awyt_1331 awyt_1332 awyt_1333 awyt_1334 awyt_1335 awyt_1336 awyt_1337 awyt_1338 awyt_1339 ///
        awyt_1340 awyt_1341 awyt_1342 awyt_1343 awyt_1344 awyt_1345 awyt_1347 awyt_1350 awyt_1351 awyt_1352 ///
        awyt_1353 awyt_1354 awyt_1408 awyt_1410 awyt_1424 awyt_1427 awyt_1429 awyt_1438 awyt_1441 awyt_1443 ///
        awyt_1465 awyt_1466 awyt_1508 awyt_1521 awyt_1522 awyt_1523 awyt_1524 awyt_1526 awyt_1527 awyt_1528 ///
        awyt_1529 awyt_1531 awyt_1532 awyt_1533 awyt_1534 awyt_1535 awyt_1536 awyt_1537 awyt_1538 awyt_1539 ///
        awyt_1541 awyt_1542 awyt_1543 awyt_1544 awyt_1546 awyt_1547 awyt_1548 awyt_1633 awyt_1654 awyt_1663 ///
        awyt_1669 awyt_1671 awyt_1687 awyt_1692 awyt_1714 awyt_1715 awyt_1716 awyt_1717 awyt_1718 awyt_1719 ///
        awyt_1720 awyt_1721 awyt_1722 awyt_1723 awyt_1725 awyt_1726 awyt_1727 awyt_1736 awyt_1738 awyt_1739 ///
        awyt_1745 awyt_1746 awyt_1747 awyt_1748 awyt_1749 awyt_1750 awyt_1751 awyt_1756 awyt_1757 awyt_1758 ///
        awyt_1760 awyt_1761 awyt_1772 awyt_1918 awyt_1920 awyt_1947 awyt_1948 awyt_1949 awyt_1952 awyt_1953 ///
        awyt_1955 awyt_1957 awyt_1959 awyt_1962 awyt_1965 awyt_1969 awyt_1971 awyt_1973 awyt_1977 awyt_1982 ///
        awyt_1983 awyt_1984 awyt_1987 awyt_1989 awyt_1990 awyt_1991 awyt_2012 awyt_2014 awyt_2019 awyt_2024 ///
        awyt_2029 awyt_2030 awyt_2031 awyt_2032 awyt_2033 awyt_2034 awyt_2084 awyt_2093 awyt_2100 awyt_2104 ///
        awyt_2105 awyt_2106 awyt_2107 awyt_2108 awyt_2113 awyt_2117 awyt_2118 awyt_2119 awyt_2120 awyt_2121 ///
        awyt_2122 awyt_2126 awyt_2129 awyt_2130 awyt_2139 awyt_2140 awyt_2141 awyt_2142 awyt_2143 awyt_2144 ///
        awyt_2145 awyt_2146 awyt_2147 awyt_2148 awyt_2150 awyt_2151 awyt_2173 awyt_2174 awyt_2176 awyt_2177 ///
        awyt_2178 awyt_2179 awyt_2180 awyt_2181 awyt_2182 awyt_2183 awyt_2185 awyt_2187 awyt_2197 awyt_2198 ///
        awyt_2199 awyt_2200 awyt_2201 awyt_2202 awyt_2203 awyt_2205 awyt_2208 awyt_2209 awyt_2210 awyt_2211 ///
        awyt_2212 awyt_2213 awyt_2217 awyt_2220 awyt_2222 awyt_2223 awyt_2224 awyt_2225 awyt_2227 awyt_2229 ///
        awyt_2231 awyt_2232 awyt_2233 awyt_2234 awyt_2236 awyt_2237 awyt_2239 awyt_2240 awyt_2241 awyt_2243 ///
        awyt_2245 awyt_2246 awyt_2249 awyt_2250 awyt_2255 awyt_2257 dirq_0002 dirq_0003 dirq_0009 dirq_0010 ///
        dirq_0019 dirq_0023 dirq_0026 dirq_0030 dirq_0032 dirq_0041 dirq_0043 dirq_0046 dirq_0059 dirq_0063 ///
        dirq_0064 dirq_0084 dirq_0085 dirq_0088 dirq_0095 dirq_0096 dirq_0097 dirq_0100 dirq_0130 dirq_0132 ///
        dirq_0144 dirq_0145 dirq_0163 dirq_0164 dirq_0165 dirq_0174 dirq_0175 dirq_0178 dirq_0179 dirq_0230 ///
        dirq_0231 dirq_0235 dirq_0237 dirq_0238 dirq_0240 dirq_0241 dirq_0242 dirq_0243 dirq_0245 dirq_0247 ///
        dirq_0257 dirq_0263 dirq_0264 dirq_0265 dirq_0266 dirq_0267 dirq_0268 dirq_0270 dirq_0273 dirq_0278 ///
        dirq_0287 dirq_0288 dirq_0299 dirq_0344 dirq_0346 dirq_0347 dirq_0352 dirq_0353 dirq_0355 dirq_0356 ///
        dirq_0358 dirq_0361 dirq_0363 dirq_0365 dirq_0366 dirq_0383 dirq_0388 dirq_0389 dirq_0393 dirq_0399 ///
        dirq_0401 dirq_0424 dirq_0425 dirq_0430 dirq_0435 dirq_0438 dirq_0447 dirq_0453 dirq_0466 dirq_0471 ///
        dirq_0473 dirq_0474 dirq_0476 dirq_0477 dirq_0487 dirq_0488 dirq_0489 dirq_0490 dirq_0501 dirq_0503 ///
        dirq_0507 dirq_0508 dirq_0514 dirq_0518 dirq_0521 dirq_0522 dirq_0524 dirq_0527 dirq_0529 dirq_0541 ///
        dirq_0542 dirq_0544 dirq_0553 dirq_0554 dirq_0555 dirq_0557 dirq_0559 dirq_0560 dirq_0572 dirq_0575 ///
        dirq_0576 dirq_0585 dirq_0586 dirq_0587 dirq_0598 dirq_0604 dirq_0606 dirq_0607 dirq_0611 dirq_0612 ///
        dirq_0613 dirq_0615 dirq_0621 dirq_0622 dirq_0624 dirq_0625 dirq_0626 dirq_0628 dirq_0640 dirq_0646 ///
        dirq_0647 dirq_0648 dirq_0655 dirq_0660 dirq_0661 dirq_0662 dirq_0663 dirq_0674 dirq_0689 dirq_0704 ///
        dirq_0706 dirq_0707 dirq_0717 dirq_0719 dirq_0726 dirq_0727 dirq_0737 dirq_0739 dirq_0745 dirq_0746 ///
        dirq_0775 dirq_0801 dirq_0802 dirq_0804 dirq_0805 dirq_0807 dirq_0811 dirq_0817 dirq_0818 dirq_0843 ///
        dirq_0844 dirq_0845 dirq_0849 dirq_0859 dirq_0860 dirq_0861 dirq_0866 dirq_0868 dirq_0876 dirq_0877 ///
        dirq_0880 dirq_0885 dirq_0901 dirq_0902 dirq_0907 dirq_0912 dirq_0913 dirq_0939 dirq_0942 dirq_0944 ///
        dirq_0950 dirq_0952 dirq_0953 dirq_0955 dirq_0956 dirq_0957 dirq_0959 dirq_0961 dirq_0962 dirq_0964 ///
        dirq_0965 dirq_0971 dirq_0972 dirq_0986 dirq_0988 dirq_0989 dirq_0994 dirq_0995 dirq_0996 dirq_1001 ///
        dirq_1002 dirq_1003 dirq_1005 dirq_1011 dirq_1014 dirq_1015 dirq_1020 dirq_1029 dirq_1031 dirq_1037 ///
        dirq_1038 dirq_1039 dirq_1052 dirq_1063 dirq_1065 dirq_1066 dirq_1069 dirq_1070 dirq_1075 dirq_1077 ///
        dirq_1078 dirq_1080 dirq_1087 dirq_1088 dirq_1091 dirq_1092 dirq_1102 dirq_1118 dirq_1120 dirq_1121 ///
        dirq_1125 dirq_1127 dirq_1128 dirq_1130 dirq_1131 dirq_1132 dirq_1140 dirq_1141 dirq_1144 dirq_1147 ///
        dirq_1149 dirq_1150 dirq_1152 dirq_1154 dirq_1155 dirq_1157 dirq_1158 dirq_1160 dirq_1162 dirq_1164 ///
        dirq_1169 dirq_1173 dirq_1175 dirq_1176 dirq_1194 dirq_1195 dirq_1200 dirq_1202 dirq_1209 dirq_1213 ///
        dirq_1215 dirq_1221 dirq_1225 dirq_1228 dirq_1229 dirq_1243 dirq_1248 dirq_1256 dirq_1257 dirq_1259 ///
        dirq_1273 dirq_1290 dirq_1291 dirq_1294 dirq_1295 dirq_1297 dirq_1306 dirq_1311 dirq_1312 dirq_1314 ///
        dirq_1322 dirq_1323 dirq_1328 dirq_1333 dirq_1335 dirq_1349 dirq_1352 dirq_1380 dirq_1381 dirq_1390 ///
        dirq_1392 dirq_1393 dirq_1425 dirq_1428 dirq_1429 dirq_1430 dirq_1432 dirq_1437 dirq_1440 dirq_1442 ///
        dirq_1443 dirq_1444 dirq_1446 dirq_1447 dirq_1448 dirq_1449 dirq_1451 dirq_1452 dirq_1481 dirq_1487 ///
        dirq_1489 dirq_1491 dirq_1493 dirq_1494 dirq_1495 dirq_1499 dirq_1500 dirq_1502 dirq_1506 dirq_1508 ///
        dirq_1520 dirq_1523 dirq_1524 dirq_1527 dirq_1574 dirq_1578 dirq_1580 dirq_1588 dirq_1589 dirq_1591 ///
        dirq_1593 dirq_1596 dirq_1597 dirq_1599 dirq_1600 dirq_1601 dirq_1614 dirq_1615 dirq_1629 dirq_1631 ///
        dirq_1632 dirq_1633 dirq_1638 dirq_1646 dirq_1647 dirq_1649 dirq_1654 dirq_1655 dirq_1657 dirq_1670 ///
        dirq_1673 dirq_1674 dirq_1680 dirq_1683 dirq_1684 dirq_1689 dirq_1706 dirq_1708 dirq_1709 dirq_1713 ///
        dirq_1715 dirq_1716 dirq_1717 dirq_1719 dirq_1755 dirq_1756 dirq_1757 dirq_1766 dirq_1786 dirq_1788 ///
        dirq_1791 dirq_1794 dirq_1796 dirq_1797 dirq_1813 dirq_1819 dirq_1820 dirq_1821 dirq_1838 dirq_1840 ///
        dirq_1844 dirq_1847 dirq_1849 dirq_1852 dirq_1873 dirq_1893 dirq_1894 dirq_1895 dirq_1897 dirq_1901 ///
        dirq_1902 dirq_1930 dirq_1972 dirq_1975 dirq_1979 dirq_1980 dirq_1983 dirq_1985 dirq_1986 dirq_2017 ///
        dirq_2030 dirq_2036 dirq_2042 dirq_2049 dirq_2050 dirq_2051 dirq_2073 dirq_2074 dirq_2075 dirq_2077 ///
        dirq_2078 dirq_2079 dirq_2097 dirq_2098 dirq_2105 dirq_2106 dirq_2107 dirq_2140 dirq_2141 dirq_2143 ///
        dirq_2145 dirq_2149 dirq_2163 dirq_2165 dirq_2180 dirq_2190 dirq_2195 dirq_2196 dirq_2203 dirq_2205 ///
        dirq_2207 dirq_2209 dirq_2213 dirq_2214 dirq_2220 dirq_2222 dirq_2237 dirq_2243 dirq_2244 dirq_2247 ///
        dirq_2251 dirq_2253 dirq_2271 dirq_2289 dirq_2290 dirq_2292 dirq_2307 dirq_2313 dirq_2315 dirq_2357 ///
        dirq_2358 dirq_2359 dirq_2383 dirq_2394 dirq_2403 dirq_2404 dirq_2405 dirq_2415 dirq_2417 dirq_2419 ///
        dirq_2420 dirq_2422 dirq_2434 dirq_2436 dirq_2438 dirq_2457 dirq_2458 dirq_2459 dirq_2462 dirq_2468 ///
        dirq_2471 dirq_2473 dirq_2477 dirq_2478 dirq_2480 dirq_2481 dirq_2482 dirq_2484 dirq_2512 dirq_2515 ///
        dirq_2518 dirq_2519 dirq_2524 dirq_2526 dirq_2527 dirq_2531 dirq_2537 dirq_2549 dirq_2551 dirq_2557 ///
        dirq_2558 dirq_2583 dirq_2585 dirq_2597 dirq_2614 dirq_2617 dirq_2627 dirq_2644 dirq_2645 dirq_2646 ///
        dirq_2647 dirq_2652 dirq_2661 dirq_2662 dirq_2669 dirq_2670 dirq_2673 dirq_2674 dirq_2682 dirq_2694 ///
        dirq_2695 dirq_2710 dirq_2713 dirq_2730 dirq_2731 dirq_2732 dirq_2746 dirq_2748 dirq_2749 dirq_2758 ///
        dirq_2761 dirq_2766 dirq_2767 dirq_2769 dirq_2771 dirq_2779 dirq_2805 dirq_2830 dirq_2832 dirq_2838 ///
        dirq_2840 dirq_2841 dirq_2843 dirq_2846 dirq_2847 dirq_2848 dirq_2853 dirq_2876 dirq_2877 dirq_2884 ///
        dirq_2888 dirq_2898 dirq_2899 dirq_2910 dirq_2911 dirq_2914 dirq_2915 dirq_2927 dirq_2928 dirq_2931 ///
        dirq_2932 dirq_2934 dirq_2935 dirq_2937 dirq_2938 dirq_2945 dirq_2946 dirq_2947 dirq_2952 dirq_2954 ///
        dirq_2955 dirq_2964 dirq_2968 dirq_2969 dirq_2970 dirq_2973 dirq_2979 dirq_2983 dirq_2985 dirq_2986 ///
        dirq_2988 dirq_2989 dirq_2990 dirq_3009 dirq_3010 dirq_3015 dirq_3031 dirq_3032 dirq_3034 dirq_3044 ///
        dirq_3048 dirq_3050 dirq_3055 dirq_3075 dirq_3077 dirq_3078 dirq_3083 dirq_3098 dirq_3100 dirq_3104 ///
        dirq_3114 dirq_3115 dirq_3119 dirq_3121 dirq_3137 dirq_3139 dirq_3140 dirq_3144 dirq_3160 dirq_3181 ///
        dirq_3191 dirq_3192 dirq_3193 dirq_3194 dirq_3195 dirq_3217 dirq_3219 dirq_3225 dirq_3228 dirq_3229 ///
        dirq_3230 dirq_3232 dirq_3233 dirq_3235 dirq_3236 dirq_3241 dirq_3242 dirq_3243 dirq_3282 dirq_3284 ///
        dirq_3286 dirq_3289 dirq_3296 dirq_3298 dirq_3299 dirq_3311 dirq_3325 dirq_3327 dirq_3371 dirq_3400 ///
        dirq_3412 dirq_3413 dirq_3415 dirq_3416 dirq_3417 dirq_3427 dirq_3431 dirq_3432 dirq_3434 dirq_3435 ///
        dirq_3436 dirq_3437 dirq_3468 dirq_3479 dirq_3480 dirq_3485 dirq_3486 dirq_3503 dirq_3505 dirq_3506 ///
        dirq_3535 dirq_3536 dirq_3537 dirq_3559 dirq_3571 dirq_3580 dirq_3581 dirq_3582 ///
		(HHI = ///
        ivbl_0001 ivbl_0005 ivbl_0007 ivbl_0030 ivbl_0059 ///
		)	 ///
		, fe	
est store col7	

*--------------------------------------------------------------------------------------------------------------
*table 3 - column 8
*--------------------------------------------------------------------------------------------------------------
ivlasso FUEL FLTIME FREQ ASIZE MASS ///
		(TPR SLOT HUB LCC FUELP_2ylag FUELP_3ylag FUELP_4ylag airl_* awyt_* dirq_* actv_*) ///
		(HHI = ivde_* ivbl_* ivha_*), fe cluster(city_pair)
xtivreg2 ///
		FUEL ///
		FLTIME FREQ ASIZE MASS TPR SLOT HUB LCC FUELP_3ylag FUELP_4ylag	 ///
        airl_0003 airl_0004 airl_0006 airl_0009 airl_0018 airl_0021 airl_0030 awyt_0050 awyt_0051 awyt_0062 ///
        awyt_0074 awyt_0078 awyt_0081 awyt_0085 awyt_0086 awyt_0094 awyt_0095 awyt_0110 awyt_0135 awyt_0137 ///
        awyt_0140 awyt_0143 awyt_0144 awyt_0145 awyt_0147 awyt_0152 awyt_0163 awyt_0164 awyt_0167 awyt_0168 ///
        awyt_0173 awyt_0174 awyt_0175 awyt_0176 awyt_0177 awyt_0178 awyt_0179 awyt_0180 awyt_0182 awyt_0185 ///
        awyt_0188 awyt_0190 awyt_0191 awyt_0201 awyt_0202 awyt_0203 awyt_0204 awyt_0205 awyt_0206 awyt_0207 ///
        awyt_0208 awyt_0209 awyt_0211 awyt_0212 awyt_0213 awyt_0214 awyt_0215 awyt_0216 awyt_0220 awyt_0221 ///
        awyt_0222 awyt_0223 awyt_0225 awyt_0308 awyt_0336 awyt_0375 awyt_0378 awyt_0392 awyt_0393 awyt_0395 ///
        awyt_0402 awyt_0403 awyt_0404 awyt_0405 awyt_0411 awyt_0414 awyt_0416 awyt_0547 awyt_0557 awyt_0584 ///
        awyt_0585 awyt_0586 awyt_0587 awyt_0588 awyt_0590 awyt_0591 awyt_0593 awyt_0594 awyt_0596 awyt_0597 ///
        awyt_0600 awyt_0601 awyt_0603 awyt_0609 awyt_0615 awyt_0620 awyt_0621 awyt_0626 awyt_0631 awyt_0643 ///
        awyt_0677 awyt_0788 awyt_0790 awyt_0816 awyt_0817 awyt_0818 awyt_0819 awyt_0821 awyt_0822 awyt_0823 ///
        awyt_0825 awyt_0829 awyt_0830 awyt_0832 awyt_0833 awyt_0835 awyt_0838 awyt_0839 awyt_0840 awyt_0841 ///
        awyt_0842 awyt_0843 awyt_0846 awyt_0847 awyt_0849 awyt_0850 awyt_0852 awyt_0853 awyt_0854 awyt_0855 ///
        awyt_0856 awyt_0859 awyt_0860 awyt_0863 awyt_0869 awyt_0882 awyt_0889 awyt_0894 awyt_0895 awyt_0898 ///
        awyt_0899 awyt_0900 awyt_0901 awyt_0902 awyt_0903 awyt_0904 awyt_0953 awyt_0954 awyt_0955 awyt_0956 ///
        awyt_0957 awyt_0958 awyt_0961 awyt_0966 awyt_0968 awyt_0985 awyt_0986 awyt_0987 awyt_0988 awyt_0989 ///
        awyt_0990 awyt_0991 awyt_0996 awyt_0998 awyt_0999 awyt_1010 awyt_1011 awyt_1014 awyt_1015 awyt_1016 ///
        awyt_1017 awyt_1020 awyt_1047 awyt_1048 awyt_1049 awyt_1051 awyt_1055 awyt_1061 awyt_1067 awyt_1069 ///
        awyt_1070 awyt_1071 awyt_1072 awyt_1075 awyt_1079 awyt_1080 awyt_1081 awyt_1082 awyt_1083 awyt_1089 ///
        awyt_1094 awyt_1095 awyt_1099 awyt_1101 awyt_1103 awyt_1104 awyt_1106 awyt_1107 awyt_1109 awyt_1116 ///
        awyt_1117 awyt_1124 awyt_1125 awyt_1126 awyt_1127 awyt_1128 awyt_1129 awyt_1130 awyt_1192 awyt_1204 ///
        awyt_1206 awyt_1211 awyt_1214 awyt_1216 awyt_1224 awyt_1225 awyt_1238 awyt_1240 awyt_1244 awyt_1268 ///
        awyt_1269 awyt_1270 awyt_1271 awyt_1272 awyt_1273 awyt_1274 awyt_1275 awyt_1279 awyt_1282 awyt_1289 ///
        awyt_1290 awyt_1291 awyt_1292 awyt_1293 awyt_1294 awyt_1295 awyt_1296 awyt_1297 awyt_1298 awyt_1299 ///
        awyt_1300 awyt_1301 awyt_1302 awyt_1303 awyt_1304 awyt_1305 awyt_1306 awyt_1307 awyt_1308 awyt_1309 ///
        awyt_1310 awyt_1311 awyt_1312 awyt_1313 awyt_1315 awyt_1318 awyt_1321 awyt_1331 awyt_1332 awyt_1333 ///
        awyt_1334 awyt_1335 awyt_1336 awyt_1337 awyt_1338 awyt_1339 awyt_1340 awyt_1342 awyt_1343 awyt_1344 ///
        awyt_1345 awyt_1352 awyt_1405 awyt_1407 awyt_1408 awyt_1410 awyt_1424 awyt_1438 awyt_1441 awyt_1443 ///
        awyt_1466 awyt_1508 awyt_1522 awyt_1523 awyt_1527 awyt_1528 awyt_1529 awyt_1531 awyt_1532 awyt_1533 ///
        awyt_1534 awyt_1535 awyt_1536 awyt_1537 awyt_1538 awyt_1539 awyt_1541 awyt_1544 awyt_1546 awyt_1633 ///
        awyt_1671 awyt_1714 awyt_1715 awyt_1716 awyt_1717 awyt_1718 awyt_1719 awyt_1720 awyt_1721 awyt_1722 ///
        awyt_1723 awyt_1726 awyt_1727 awyt_1739 awyt_1745 awyt_1746 awyt_1747 awyt_1748 awyt_1749 awyt_1750 ///
        awyt_1756 awyt_1760 awyt_1761 awyt_1946 awyt_1948 awyt_1949 awyt_1952 awyt_1953 awyt_1955 awyt_1957 ///
        awyt_1959 awyt_1962 awyt_1965 awyt_1969 awyt_1970 awyt_1971 awyt_1973 awyt_1977 awyt_1982 awyt_1983 ///
        awyt_1984 awyt_1987 awyt_1989 awyt_1990 awyt_1991 awyt_2012 awyt_2014 awyt_2019 awyt_2021 awyt_2024 ///
        awyt_2028 awyt_2029 awyt_2030 awyt_2031 awyt_2032 awyt_2033 awyt_2034 awyt_2084 awyt_2085 awyt_2092 ///
        awyt_2093 awyt_2094 awyt_2096 awyt_2098 awyt_2104 awyt_2106 awyt_2112 awyt_2116 awyt_2117 awyt_2118 ///
        awyt_2119 awyt_2120 awyt_2121 awyt_2126 awyt_2129 awyt_2130 awyt_2140 awyt_2141 awyt_2142 awyt_2144 ///
        awyt_2145 awyt_2146 awyt_2147 awyt_2148 awyt_2150 awyt_2151 awyt_2173 awyt_2175 awyt_2176 awyt_2177 ///
        awyt_2178 awyt_2179 awyt_2180 awyt_2181 awyt_2182 awyt_2183 awyt_2185 awyt_2187 awyt_2188 awyt_2197 ///
        awyt_2198 awyt_2199 awyt_2200 awyt_2202 awyt_2203 awyt_2208 awyt_2209 awyt_2210 awyt_2211 awyt_2212 ///
        awyt_2213 awyt_2217 awyt_2220 awyt_2224 awyt_2225 awyt_2229 awyt_2231 awyt_2232 awyt_2234 awyt_2236 ///
        awyt_2237 awyt_2239 awyt_2246 awyt_2249 awyt_2255 awyt_2257 dirq_0003 dirq_0009 dirq_0010 dirq_0019 ///
        dirq_0022 dirq_0024 dirq_0030 dirq_0031 dirq_0032 dirq_0033 dirq_0040 dirq_0043 dirq_0046 dirq_0058 ///
        dirq_0061 dirq_0064 dirq_0065 dirq_0085 dirq_0088 dirq_0094 dirq_0096 dirq_0097 dirq_0100 dirq_0121 ///
        dirq_0130 dirq_0142 dirq_0144 dirq_0145 dirq_0164 dirq_0174 dirq_0176 dirq_0179 dirq_0235 dirq_0237 ///
        dirq_0238 dirq_0240 dirq_0241 dirq_0242 dirq_0244 dirq_0245 dirq_0247 dirq_0252 dirq_0262 dirq_0263 ///
        dirq_0265 dirq_0267 dirq_0268 dirq_0269 dirq_0270 dirq_0273 dirq_0281 dirq_0282 dirq_0287 dirq_0288 ///
        dirq_0299 dirq_0300 dirq_0345 dirq_0346 dirq_0347 dirq_0352 dirq_0354 dirq_0356 dirq_0363 dirq_0365 ///
        dirq_0367 dirq_0370 dirq_0374 dirq_0380 dirq_0388 dirq_0389 dirq_0392 dirq_0394 dirq_0401 dirq_0425 ///
        dirq_0427 dirq_0440 dirq_0451 dirq_0452 dirq_0453 dirq_0458 dirq_0464 dirq_0466 dirq_0470 dirq_0471 ///
        dirq_0473 dirq_0475 dirq_0476 dirq_0477 dirq_0487 dirq_0488 dirq_0489 dirq_0490 dirq_0492 dirq_0501 ///
        dirq_0503 dirq_0504 dirq_0505 dirq_0507 dirq_0508 dirq_0514 dirq_0518 dirq_0521 dirq_0522 dirq_0524 ///
        dirq_0527 dirq_0532 dirq_0541 dirq_0542 dirq_0554 dirq_0555 dirq_0558 dirq_0559 dirq_0560 dirq_0571 ///
        dirq_0572 dirq_0574 dirq_0586 dirq_0598 dirq_0602 dirq_0604 dirq_0605 dirq_0607 dirq_0608 dirq_0610 ///
        dirq_0611 dirq_0612 dirq_0613 dirq_0615 dirq_0621 dirq_0623 dirq_0625 dirq_0626 dirq_0628 dirq_0631 ///
        dirq_0639 dirq_0647 dirq_0648 dirq_0654 dirq_0655 dirq_0659 dirq_0662 dirq_0663 dirq_0664 dirq_0665 ///
        dirq_0674 dirq_0704 dirq_0705 dirq_0707 dirq_0710 dirq_0719 dirq_0721 dirq_0737 dirq_0739 dirq_0745 ///
        dirq_0746 dirq_0772 dirq_0775 dirq_0802 dirq_0806 dirq_0807 dirq_0809 dirq_0810 dirq_0811 dirq_0818 ///
        dirq_0843 dirq_0844 dirq_0845 dirq_0846 dirq_0847 dirq_0849 dirq_0865 dirq_0866 dirq_0869 dirq_0877 ///
        dirq_0885 dirq_0902 dirq_0907 dirq_0912 dirq_0913 dirq_0930 dirq_0931 dirq_0939 dirq_0943 dirq_0944 ///
        dirq_0950 dirq_0952 dirq_0953 dirq_0955 dirq_0959 dirq_0961 dirq_0962 dirq_0964 dirq_0965 dirq_0971 ///
        dirq_0972 dirq_0975 dirq_0986 dirq_0988 dirq_0995 dirq_0996 dirq_0997 dirq_1002 dirq_1003 dirq_1004 ///
        dirq_1006 dirq_1009 dirq_1014 dirq_1015 dirq_1020 dirq_1032 dirq_1038 dirq_1064 dirq_1065 dirq_1069 ///
        dirq_1088 dirq_1089 dirq_1090 dirq_1091 dirq_1093 dirq_1118 dirq_1121 dirq_1125 dirq_1127 dirq_1128 ///
        dirq_1129 dirq_1131 dirq_1132 dirq_1137 dirq_1140 dirq_1144 dirq_1147 dirq_1149 dirq_1150 dirq_1152 ///
        dirq_1154 dirq_1155 dirq_1157 dirq_1158 dirq_1159 dirq_1162 dirq_1164 dirq_1169 dirq_1173 dirq_1175 ///
        dirq_1176 dirq_1193 dirq_1194 dirq_1197 dirq_1200 dirq_1202 dirq_1221 dirq_1223 dirq_1225 dirq_1229 ///
        dirq_1240 dirq_1243 dirq_1246 dirq_1248 dirq_1251 dirq_1256 dirq_1258 dirq_1259 dirq_1273 dirq_1290 ///
        dirq_1291 dirq_1294 dirq_1296 dirq_1297 dirq_1309 dirq_1312 dirq_1313 dirq_1315 dirq_1316 dirq_1322 ///
        dirq_1324 dirq_1325 dirq_1326 dirq_1328 dirq_1332 dirq_1335 dirq_1352 dirq_1353 dirq_1378 dirq_1380 ///
        dirq_1381 dirq_1390 dirq_1392 dirq_1393 dirq_1406 dirq_1425 dirq_1427 dirq_1429 dirq_1430 dirq_1432 ///
        dirq_1437 dirq_1440 dirq_1442 dirq_1443 dirq_1444 dirq_1445 dirq_1447 dirq_1448 dirq_1449 dirq_1451 ///
        dirq_1452 dirq_1487 dirq_1489 dirq_1491 dirq_1492 dirq_1495 dirq_1496 dirq_1500 dirq_1502 dirq_1506 ///
        dirq_1508 dirq_1521 dirq_1523 dirq_1526 dirq_1527 dirq_1550 dirq_1566 dirq_1567 dirq_1571 dirq_1574 ///
        dirq_1576 dirq_1577 dirq_1578 dirq_1586 dirq_1591 dirq_1593 dirq_1596 dirq_1597 dirq_1600 dirq_1601 ///
        dirq_1615 dirq_1617 dirq_1630 dirq_1631 dirq_1633 dirq_1638 dirq_1646 dirq_1647 dirq_1648 dirq_1654 ///
        dirq_1655 dirq_1657 dirq_1670 dirq_1671 dirq_1683 dirq_1706 dirq_1709 dirq_1711 dirq_1713 dirq_1715 ///
        dirq_1719 dirq_1721 dirq_1755 dirq_1756 dirq_1757 dirq_1766 dirq_1772 dirq_1786 dirq_1794 dirq_1795 ///
        dirq_1796 dirq_1803 dirq_1810 dirq_1813 dirq_1819 dirq_1820 dirq_1840 dirq_1841 dirq_1843 dirq_1844 ///
        dirq_1845 dirq_1847 dirq_1852 dirq_1868 dirq_1875 dirq_1894 dirq_1895 dirq_1897 dirq_1900 dirq_1901 ///
        dirq_1902 dirq_1928 dirq_1966 dirq_1974 dirq_1980 dirq_1984 dirq_1985 dirq_1986 dirq_2030 dirq_2032 ///
        dirq_2036 dirq_2039 dirq_2048 dirq_2049 dirq_2051 dirq_2064 dirq_2073 dirq_2074 dirq_2075 dirq_2077 ///
        dirq_2078 dirq_2080 dirq_2097 dirq_2098 dirq_2105 dirq_2106 dirq_2107 dirq_2141 dirq_2165 dirq_2180 ///
        dirq_2187 dirq_2189 dirq_2190 dirq_2195 dirq_2196 dirq_2200 dirq_2203 dirq_2205 dirq_2207 dirq_2210 ///
        dirq_2213 dirq_2214 dirq_2222 dirq_2237 dirq_2244 dirq_2246 dirq_2251 dirq_2252 dirq_2254 dirq_2270 ///
        dirq_2271 dirq_2289 dirq_2291 dirq_2292 dirq_2294 dirq_2304 dirq_2307 dirq_2312 dirq_2313 dirq_2314 ///
        dirq_2332 dirq_2356 dirq_2357 dirq_2358 dirq_2383 dirq_2405 dirq_2416 dirq_2417 dirq_2418 dirq_2419 ///
        dirq_2420 dirq_2422 dirq_2424 dirq_2434 dirq_2438 dirq_2439 dirq_2440 dirq_2459 dirq_2465 dirq_2466 ///
        dirq_2468 dirq_2471 dirq_2473 dirq_2477 dirq_2479 dirq_2480 dirq_2481 dirq_2482 dirq_2486 dirq_2512 ///
        dirq_2513 dirq_2519 dirq_2526 dirq_2527 dirq_2531 dirq_2534 dirq_2535 dirq_2542 dirq_2543 dirq_2550 ///
        dirq_2551 dirq_2557 dirq_2558 dirq_2585 dirq_2597 dirq_2598 dirq_2607 dirq_2612 dirq_2614 dirq_2617 ///
        dirq_2619 dirq_2644 dirq_2645 dirq_2646 dirq_2647 dirq_2650 dirq_2655 dirq_2661 dirq_2662 dirq_2667 ///
        dirq_2670 dirq_2682 dirq_2683 dirq_2700 dirq_2710 dirq_2715 dirq_2727 dirq_2731 dirq_2746 dirq_2747 ///
        dirq_2749 dirq_2758 dirq_2760 dirq_2768 dirq_2782 dirq_2783 dirq_2785 dirq_2832 dirq_2840 dirq_2841 ///
        dirq_2843 dirq_2845 dirq_2847 dirq_2848 dirq_2849 dirq_2851 dirq_2876 dirq_2878 dirq_2879 dirq_2896 ///
        dirq_2899 dirq_2910 dirq_2911 dirq_2912 dirq_2915 dirq_2928 dirq_2931 dirq_2932 dirq_2934 dirq_2935 ///
        dirq_2939 dirq_2945 dirq_2946 dirq_2947 dirq_2952 dirq_2954 dirq_2955 dirq_2956 dirq_2964 dirq_2968 ///
        dirq_2969 dirq_2970 dirq_2973 dirq_2974 dirq_2979 dirq_2983 dirq_2985 dirq_2987 dirq_2988 dirq_2990 ///
        dirq_3005 dirq_3008 dirq_3009 dirq_3015 dirq_3032 dirq_3034 dirq_3044 dirq_3048 dirq_3050 dirq_3055 ///
        dirq_3060 dirq_3075 dirq_3077 dirq_3078 dirq_3083 dirq_3121 dirq_3133 dirq_3137 dirq_3139 dirq_3144 ///
        dirq_3145 dirq_3150 dirq_3181 dirq_3191 dirq_3192 dirq_3193 dirq_3196 dirq_3217 dirq_3219 dirq_3225 ///
        dirq_3228 dirq_3229 dirq_3230 dirq_3232 dirq_3233 dirq_3235 dirq_3236 dirq_3239 dirq_3241 dirq_3242 ///
        dirq_3243 dirq_3280 dirq_3282 dirq_3283 dirq_3284 dirq_3285 dirq_3296 dirq_3308 dirq_3310 dirq_3326 ///
        dirq_3363 dirq_3365 dirq_3369 dirq_3371 dirq_3383 dirq_3384 dirq_3400 dirq_3412 dirq_3415 dirq_3416 ///
        dirq_3417 dirq_3427 dirq_3431 dirq_3432 dirq_3434 dirq_3435 dirq_3437 dirq_3438 dirq_3454 dirq_3463 ///
        dirq_3480 dirq_3481 dirq_3483 dirq_3494 dirq_3499 dirq_3500 dirq_3504 dirq_3535 dirq_3536 dirq_3537 ///
        dirq_3539 dirq_3559 dirq_3580 dirq_3581 actv_0002 actv_0006 actv_0007 actv_0008 actv_0009 actv_0010 ///
        actv_0011 actv_0014 actv_0015 actv_0016 actv_0022 actv_0023 actv_0024 actv_0027 actv_0028 actv_0039 ///
        actv_0040 actv_0041 actv_0043 actv_0044 actv_0045 actv_0046 actv_0054 actv_0055 actv_0058 actv_0064 ///
        actv_0066 actv_0067 actv_0068 actv_0072 actv_0073 actv_0074 actv_0077 actv_0078 actv_0079 actv_0080 ///
        actv_0081 actv_0082 actv_0083 actv_0084 actv_0086 actv_0087 actv_0088 actv_0089 actv_0090 actv_0092 ///
        actv_0097 actv_0118 actv_0130 actv_0133 ///
		(HHI = ///
        ivbl_0001 ivbl_0005 ivbl_0007 ivbl_0030 ivbl_0059 ///
		)	 ///
		, fe bw(4) rob	
est store col8

*--------------------------------------------------------------------------------------------------------------
*table 3 - column 9
*--------------------------------------------------------------------------------------------------------------
ivlasso FUEL FLTIME FREQ ASIZE MASS ///
		(TPR SLOT HUB LCC FUELP_2ylag FUELP_3ylag FUELP_4ylag airl_* awyt_* dirq_* actt_*) ///
		(HHI = ivde_* ivbl_* ivha_*), fe cluster(city_pair)
xtivreg2 ///
		FUEL ///
		FLTIME FREQ ASIZE MASS TPR SLOT HUB LCC FUELP_3ylag FUELP_4ylag	 ///
        airl_0003 airl_0006 airl_0009 airl_0018 airl_0021 airl_0030 awyt_0050 awyt_0062 awyt_0081 awyt_0086 ///
        awyt_0094 awyt_0140 awyt_0144 awyt_0145 awyt_0147 awyt_0163 awyt_0164 awyt_0167 awyt_0168 awyt_0172 ///
        awyt_0173 awyt_0174 awyt_0175 awyt_0176 awyt_0177 awyt_0178 awyt_0179 awyt_0180 awyt_0182 awyt_0185 ///
        awyt_0188 awyt_0190 awyt_0191 awyt_0203 awyt_0204 awyt_0205 awyt_0214 awyt_0215 awyt_0278 awyt_0308 ///
        awyt_0336 awyt_0378 awyt_0392 awyt_0393 awyt_0395 awyt_0403 awyt_0404 awyt_0405 awyt_0411 awyt_0412 ///
        awyt_0414 awyt_0416 awyt_0418 awyt_0557 awyt_0584 awyt_0585 awyt_0589 awyt_0591 awyt_0593 awyt_0594 ///
        awyt_0596 awyt_0597 awyt_0601 awyt_0609 awyt_0615 awyt_0620 awyt_0621 awyt_0631 awyt_0643 awyt_0677 ///
        awyt_0788 awyt_0790 awyt_0816 awyt_0817 awyt_0818 awyt_0819 awyt_0821 awyt_0822 awyt_0823 awyt_0825 ///
        awyt_0829 awyt_0830 awyt_0835 awyt_0839 awyt_0842 awyt_0843 awyt_0846 awyt_0847 awyt_0849 awyt_0850 ///
        awyt_0853 awyt_0855 awyt_0856 awyt_0857 awyt_0860 awyt_0863 awyt_0870 awyt_0894 awyt_0895 awyt_0898 ///
        awyt_0899 awyt_0900 awyt_0901 awyt_0902 awyt_0954 awyt_0955 awyt_0958 awyt_0961 awyt_0987 awyt_0988 ///
        awyt_0989 awyt_0990 awyt_0991 awyt_0996 awyt_0999 awyt_1010 awyt_1011 awyt_1014 awyt_1015 awyt_1016 ///
        awyt_1017 awyt_1018 awyt_1020 awyt_1047 awyt_1048 awyt_1049 awyt_1051 awyt_1055 awyt_1061 awyt_1067 ///
        awyt_1070 awyt_1072 awyt_1075 awyt_1079 awyt_1080 awyt_1081 awyt_1082 awyt_1083 awyt_1089 awyt_1094 ///
        awyt_1095 awyt_1101 awyt_1103 awyt_1104 awyt_1106 awyt_1107 awyt_1109 awyt_1116 awyt_1117 awyt_1124 ///
        awyt_1125 awyt_1126 awyt_1127 awyt_1128 awyt_1130 awyt_1192 awyt_1204 awyt_1211 awyt_1216 awyt_1224 ///
        awyt_1238 awyt_1240 awyt_1244 awyt_1269 awyt_1270 awyt_1271 awyt_1272 awyt_1273 awyt_1274 awyt_1279 ///
        awyt_1290 awyt_1291 awyt_1293 awyt_1294 awyt_1295 awyt_1296 awyt_1297 awyt_1298 awyt_1299 awyt_1300 ///
        awyt_1301 awyt_1302 awyt_1303 awyt_1304 awyt_1305 awyt_1306 awyt_1307 awyt_1308 awyt_1309 awyt_1310 ///
        awyt_1311 awyt_1312 awyt_1313 awyt_1315 awyt_1318 awyt_1320 awyt_1321 awyt_1331 awyt_1332 awyt_1333 ///
        awyt_1334 awyt_1335 awyt_1336 awyt_1337 awyt_1343 awyt_1344 awyt_1408 awyt_1410 awyt_1441 awyt_1466 ///
        awyt_1508 awyt_1522 awyt_1527 awyt_1528 awyt_1533 awyt_1535 awyt_1536 awyt_1537 awyt_1538 awyt_1539 ///
        awyt_1541 awyt_1542 awyt_1544 awyt_1546 awyt_1547 awyt_1548 awyt_1633 awyt_1671 awyt_1714 awyt_1715 ///
        awyt_1716 awyt_1717 awyt_1719 awyt_1721 awyt_1723 awyt_1726 awyt_1739 awyt_1745 awyt_1746 awyt_1749 ///
        awyt_1750 awyt_1760 awyt_1946 awyt_1947 awyt_1948 awyt_1949 awyt_1952 awyt_1953 awyt_1955 awyt_1959 ///
        awyt_1965 awyt_1969 awyt_1971 awyt_1977 awyt_1982 awyt_1983 awyt_1987 awyt_1990 awyt_1991 awyt_2000 ///
        awyt_2019 awyt_2024 awyt_2025 awyt_2028 awyt_2029 awyt_2030 awyt_2031 awyt_2032 awyt_2033 awyt_2034 ///
        awyt_2084 awyt_2086 awyt_2087 awyt_2093 awyt_2108 awyt_2117 awyt_2118 awyt_2119 awyt_2120 awyt_2121 ///
        awyt_2126 awyt_2129 awyt_2140 awyt_2141 awyt_2142 awyt_2144 awyt_2145 awyt_2146 awyt_2147 awyt_2148 ///
        awyt_2150 awyt_2151 awyt_2176 awyt_2177 awyt_2178 awyt_2179 awyt_2180 awyt_2181 awyt_2185 awyt_2197 ///
        awyt_2198 awyt_2200 awyt_2202 awyt_2203 awyt_2209 awyt_2210 awyt_2211 awyt_2212 awyt_2213 awyt_2225 ///
        awyt_2231 awyt_2232 awyt_2233 awyt_2234 awyt_2236 awyt_2237 awyt_2239 awyt_2245 awyt_2246 awyt_2249 ///
        awyt_2255 awyt_2257 dirq_0003 dirq_0009 dirq_0010 dirq_0019 dirq_0026 dirq_0027 dirq_0029 dirq_0030 ///
        dirq_0032 dirq_0041 dirq_0046 dirq_0059 dirq_0063 dirq_0064 dirq_0085 dirq_0087 dirq_0088 dirq_0090 ///
        dirq_0091 dirq_0093 dirq_0095 dirq_0096 dirq_0097 dirq_0100 dirq_0119 dirq_0121 dirq_0130 dirq_0144 ///
        dirq_0145 dirq_0164 dirq_0174 dirq_0175 dirq_0176 dirq_0179 dirq_0186 dirq_0187 dirq_0230 dirq_0231 ///
        dirq_0233 dirq_0234 dirq_0237 dirq_0238 dirq_0239 dirq_0240 dirq_0242 dirq_0244 dirq_0245 dirq_0247 ///
        dirq_0263 dirq_0264 dirq_0265 dirq_0266 dirq_0267 dirq_0268 dirq_0270 dirq_0271 dirq_0273 dirq_0287 ///
        dirq_0288 dirq_0299 dirq_0347 dirq_0352 dirq_0353 dirq_0354 dirq_0356 dirq_0358 dirq_0361 dirq_0363 ///
        dirq_0365 dirq_0366 dirq_0372 dirq_0375 dirq_0381 dirq_0383 dirq_0388 dirq_0389 dirq_0391 dirq_0392 ///
        dirq_0394 dirq_0401 dirq_0435 dirq_0437 dirq_0451 dirq_0452 dirq_0453 dirq_0456 dirq_0463 dirq_0464 ///
        dirq_0466 dirq_0475 dirq_0477 dirq_0487 dirq_0488 dirq_0489 dirq_0490 dirq_0501 dirq_0503 dirq_0504 ///
        dirq_0505 dirq_0508 dirq_0513 dirq_0514 dirq_0522 dirq_0527 dirq_0531 dirq_0541 dirq_0543 dirq_0554 ///
        dirq_0555 dirq_0556 dirq_0558 dirq_0559 dirq_0560 dirq_0569 dirq_0572 dirq_0576 dirq_0586 dirq_0588 ///
        dirq_0598 dirq_0604 dirq_0606 dirq_0607 dirq_0609 dirq_0610 dirq_0611 dirq_0613 dirq_0615 dirq_0621 ///
        dirq_0622 dirq_0624 dirq_0625 dirq_0626 dirq_0627 dirq_0629 dirq_0631 dirq_0640 dirq_0647 dirq_0648 ///
        dirq_0656 dirq_0661 dirq_0662 dirq_0663 dirq_0671 dirq_0674 dirq_0704 dirq_0705 dirq_0706 dirq_0717 ///
        dirq_0719 dirq_0721 dirq_0722 dirq_0726 dirq_0737 dirq_0739 dirq_0746 dirq_0747 dirq_0775 dirq_0801 ///
        dirq_0802 dirq_0804 dirq_0806 dirq_0807 dirq_0808 dirq_0811 dirq_0844 dirq_0849 dirq_0860 dirq_0861 ///
        dirq_0866 dirq_0877 dirq_0879 dirq_0880 dirq_0884 dirq_0885 dirq_0898 dirq_0900 dirq_0902 dirq_0907 ///
        dirq_0911 dirq_0912 dirq_0939 dirq_0942 dirq_0944 dirq_0945 dirq_0953 dirq_0957 dirq_0959 dirq_0961 ///
        dirq_0964 dirq_0965 dirq_0971 dirq_0972 dirq_0973 dirq_0988 dirq_0989 dirq_0995 dirq_0996 dirq_0997 ///
        dirq_1001 dirq_1003 dirq_1004 dirq_1005 dirq_1011 dirq_1014 dirq_1020 dirq_1029 dirq_1031 dirq_1038 ///
        dirq_1039 dirq_1049 dirq_1065 dirq_1066 dirq_1067 dirq_1070 dirq_1077 dirq_1078 dirq_1079 dirq_1080 ///
        dirq_1087 dirq_1088 dirq_1090 dirq_1091 dirq_1093 dirq_1118 dirq_1119 dirq_1121 dirq_1125 dirq_1127 ///
        dirq_1128 dirq_1129 dirq_1131 dirq_1132 dirq_1138 dirq_1140 dirq_1141 dirq_1147 dirq_1149 dirq_1150 ///
        dirq_1151 dirq_1154 dirq_1155 dirq_1157 dirq_1158 dirq_1160 dirq_1162 dirq_1164 dirq_1169 dirq_1171 ///
        dirq_1173 dirq_1175 dirq_1176 dirq_1193 dirq_1194 dirq_1200 dirq_1202 dirq_1221 dirq_1223 dirq_1225 ///
        dirq_1248 dirq_1256 dirq_1257 dirq_1259 dirq_1273 dirq_1290 dirq_1291 dirq_1294 dirq_1296 dirq_1297 ///
        dirq_1298 dirq_1300 dirq_1306 dirq_1311 dirq_1322 dirq_1323 dirq_1327 dirq_1328 dirq_1329 dirq_1333 ///
        dirq_1334 dirq_1335 dirq_1349 dirq_1352 dirq_1358 dirq_1368 dirq_1380 dirq_1381 dirq_1390 dirq_1392 ///
        dirq_1393 dirq_1425 dirq_1428 dirq_1429 dirq_1430 dirq_1432 dirq_1437 dirq_1440 dirq_1442 dirq_1443 ///
        dirq_1444 dirq_1447 dirq_1448 dirq_1449 dirq_1450 dirq_1451 dirq_1481 dirq_1488 dirq_1489 dirq_1491 ///
        dirq_1492 dirq_1494 dirq_1495 dirq_1498 dirq_1499 dirq_1500 dirq_1502 dirq_1506 dirq_1508 dirq_1509 ///
        dirq_1527 dirq_1569 dirq_1574 dirq_1578 dirq_1587 dirq_1588 dirq_1591 dirq_1593 dirq_1596 dirq_1597 ///
        dirq_1600 dirq_1601 dirq_1617 dirq_1627 dirq_1629 dirq_1631 dirq_1632 dirq_1633 dirq_1646 dirq_1647 ///
        dirq_1649 dirq_1654 dirq_1655 dirq_1657 dirq_1670 dirq_1671 dirq_1679 dirq_1680 dirq_1683 dirq_1708 ///
        dirq_1709 dirq_1712 dirq_1714 dirq_1716 dirq_1717 dirq_1719 dirq_1746 dirq_1754 dirq_1755 dirq_1756 ///
        dirq_1766 dirq_1778 dirq_1794 dirq_1795 dirq_1796 dirq_1803 dirq_1813 dirq_1819 dirq_1820 dirq_1837 ///
        dirq_1840 dirq_1844 dirq_1845 dirq_1847 dirq_1848 dirq_1852 dirq_1875 dirq_1894 dirq_1895 dirq_1897 ///
        dirq_1901 dirq_1902 dirq_1972 dirq_1973 dirq_1978 dirq_1983 dirq_1984 dirq_1985 dirq_1986 dirq_2017 ///
        dirq_2030 dirq_2036 dirq_2042 dirq_2049 dirq_2050 dirq_2051 dirq_2054 dirq_2073 dirq_2074 dirq_2075 ///
        dirq_2077 dirq_2078 dirq_2082 dirq_2097 dirq_2098 dirq_2099 dirq_2104 dirq_2105 dirq_2107 dirq_2147 ///
        dirq_2148 dirq_2149 dirq_2165 dirq_2176 dirq_2180 dirq_2187 dirq_2190 dirq_2196 dirq_2198 dirq_2209 ///
        dirq_2210 dirq_2212 dirq_2213 dirq_2214 dirq_2220 dirq_2243 dirq_2244 dirq_2251 dirq_2253 dirq_2254 ///
        dirq_2263 dirq_2265 dirq_2270 dirq_2271 dirq_2273 dirq_2289 dirq_2290 dirq_2292 dirq_2294 dirq_2304 ///
        dirq_2307 dirq_2308 dirq_2312 dirq_2313 dirq_2315 dirq_2332 dirq_2356 dirq_2357 dirq_2358 dirq_2375 ///
        dirq_2383 dirq_2406 dirq_2412 dirq_2414 dirq_2417 dirq_2419 dirq_2421 dirq_2422 dirq_2425 dirq_2434 ///
        dirq_2435 dirq_2436 dirq_2438 dirq_2439 dirq_2458 dirq_2459 dirq_2470 dirq_2477 dirq_2479 dirq_2480 ///
        dirq_2481 dirq_2482 dirq_2484 dirq_2512 dirq_2513 dirq_2519 dirq_2524 dirq_2533 dirq_2535 dirq_2537 ///
        dirq_2538 dirq_2550 dirq_2551 dirq_2557 dirq_2558 dirq_2583 dirq_2596 dirq_2614 dirq_2617 dirq_2630 ///
        dirq_2643 dirq_2645 dirq_2646 dirq_2647 dirq_2650 dirq_2661 dirq_2670 dirq_2673 dirq_2684 dirq_2685 ///
        dirq_2710 dirq_2713 dirq_2730 dirq_2731 dirq_2733 dirq_2758 dirq_2761 dirq_2771 dirq_2781 dirq_2783 ///
        dirq_2798 dirq_2805 dirq_2830 dirq_2832 dirq_2838 dirq_2841 dirq_2843 dirq_2846 dirq_2847 dirq_2848 ///
        dirq_2876 dirq_2877 dirq_2878 dirq_2886 dirq_2898 dirq_2899 dirq_2908 dirq_2911 dirq_2912 dirq_2927 ///
        dirq_2928 dirq_2931 dirq_2933 dirq_2934 dirq_2935 dirq_2937 dirq_2944 dirq_2946 dirq_2947 dirq_2952 ///
        dirq_2953 dirq_2955 dirq_2968 dirq_2969 dirq_2973 dirq_2979 dirq_2983 dirq_2985 dirq_2988 dirq_2989 ///
        dirq_2990 dirq_3009 dirq_3010 dirq_3015 dirq_3031 dirq_3032 dirq_3034 dirq_3046 dirq_3048 dirq_3050 ///
        dirq_3053 dirq_3055 dirq_3076 dirq_3077 dirq_3078 dirq_3083 dirq_3088 dirq_3100 dirq_3116 dirq_3123 ///
        dirq_3137 dirq_3139 dirq_3140 dirq_3144 dirq_3150 dirq_3160 dirq_3191 dirq_3192 dirq_3219 dirq_3220 ///
        dirq_3225 dirq_3228 dirq_3229 dirq_3231 dirq_3232 dirq_3233 dirq_3234 dirq_3236 dirq_3237 dirq_3241 ///
        dirq_3242 dirq_3243 dirq_3280 dirq_3283 dirq_3284 dirq_3285 dirq_3289 dirq_3297 dirq_3299 dirq_3311 ///
        dirq_3325 dirq_3327 dirq_3360 dirq_3383 dirq_3385 dirq_3399 dirq_3400 dirq_3412 dirq_3415 dirq_3416 ///
        dirq_3417 dirq_3427 dirq_3431 dirq_3432 dirq_3434 dirq_3435 dirq_3436 dirq_3437 dirq_3476 dirq_3480 ///
        dirq_3484 dirq_3485 dirq_3486 dirq_3499 dirq_3500 dirq_3503 dirq_3505 dirq_3506 dirq_3536 dirq_3537 ///
        dirq_3538 dirq_3555 dirq_3559 dirq_3564 dirq_3579 dirq_3580 dirq_3581 actt_0001 actt_0016 actt_0019 ///
        actt_0021 actt_0022 actt_0023 actt_0025 actt_0026 actt_0039 actt_0042 actt_0044 actt_0045 actt_0052 ///
        actt_0056 actt_0058 actt_0136 actt_0233 actt_0234 actt_0236 actt_0237 actt_0238 actt_0239 actt_0240 ///
        actt_0241 actt_0242 actt_0243 actt_0244 actt_0245 actt_0247 actt_0249 actt_0254 actt_0257 actt_0259 ///
        actt_0263 actt_0264 actt_0266 actt_0267 actt_0268 actt_0272 actt_0275 actt_0278 actt_0279 actt_0282 ///
        actt_0283 actt_0284 actt_0285 actt_0338 actt_0379 actt_0380 actt_0383 actt_0384 actt_0385 actt_0386 ///
        actt_0388 actt_0389 actt_0390 actt_0391 actt_0392 actt_0393 actt_0394 actt_0395 actt_0396 actt_0397 ///
        actt_0398 actt_0399 actt_0400 actt_0401 actt_0402 actt_0403 actt_0404 actt_0405 actt_0406 actt_0407 ///
        actt_0408 actt_0409 actt_0410 actt_0411 actt_0412 actt_0415 actt_0418 actt_0426 actt_0428 actt_0430 ///
        actt_0431 actt_0434 actt_0435 actt_0437 actt_0438 actt_0439 actt_0445 actt_0446 actt_0461 actt_0462 ///
        actt_0466 actt_0467 actt_0470 actt_0471 actt_0476 actt_0477 actt_0478 actt_0479 actt_0480 actt_0481 ///
        actt_0482 actt_0483 actt_0484 actt_0485 actt_0486 actt_0487 actt_0489 actt_0490 actt_0491 actt_0492 ///
        actt_0493 actt_0494 actt_0496 actt_0497 actt_0498 actt_0499 actt_0500 actt_0501 actt_0502 actt_0503 ///
        actt_0504 actt_0505 actt_0510 actt_0511 actt_0512 actt_0513 actt_0514 actt_0515 actt_0516 actt_0517 ///
        actt_0518 actt_0520 actt_0521 actt_0522 actt_0523 actt_0525 actt_0526 actt_0527 actt_0528 actt_0529 ///
        actt_0531 actt_0533 actt_0535 actt_0536 actt_0539 actt_0541 actt_0542 actt_0545 actt_0550 actt_0555 ///
        actt_0556 actt_0557 actt_0558 actt_0559 actt_0560 actt_0562 actt_0563 actt_0564 actt_0566 actt_0567 ///
        actt_0568 actt_0569 actt_0570 actt_0571 actt_0572 actt_0573 actt_0575 actt_0576 actt_0577 actt_0578 ///
        actt_0579 actt_0580 actt_0581 actt_0582 actt_0583 actt_0585 actt_0586 actt_0587 actt_0589 actt_0590 ///
        actt_0591 actt_0592 actt_0593 actt_0594 actt_0596 actt_0597 actt_0598 actt_0599 actt_0601 actt_0602 ///
        actt_0603 actt_0604 actt_0605 actt_0607 actt_0608 actt_0609 actt_0610 actt_0611 actt_0612 actt_0613 ///
        actt_0614 actt_0615 actt_0616 actt_0617 actt_0618 actt_0619 actt_0621 actt_0622 actt_0623 actt_0624 ///
        actt_0625 actt_0627 actt_0628 actt_0629 actt_0630 actt_0631 actt_0632 actt_0639 actt_0641 actt_0642 ///
        actt_0643 actt_0644 actt_0645 actt_0646 actt_0647 actt_0648 actt_0649 actt_0650 actt_0651 actt_0652 ///
        actt_0653 actt_0654 actt_0655 actt_0656 actt_0657 actt_0658 actt_0659 actt_0660 actt_0661 actt_0662 ///
        actt_0663 actt_0664 actt_0666 actt_0667 actt_0669 actt_0695 actt_0697 actt_0698 actt_0700 actt_0701 ///
        actt_0702 actt_0706 actt_0713 actt_0714 actt_0717 actt_0718 actt_0719 actt_0721 actt_0722 actt_0723 ///
        actt_0724 actt_0725 actt_0727 actt_0733 actt_0739 actt_0741 actt_0789 actt_0791 actt_0794 actt_0795 ///
        actt_0796 actt_0797 actt_0799 actt_0800 actt_0801 actt_0803 actt_0805 actt_0811 actt_0812 actt_0813 ///
        actt_0814 actt_0815 actt_0816 actt_0818 actt_0825 actt_0829 actt_0830 actt_0831 actt_0833 actt_0835 ///
        actt_0836 actt_0837 actt_0840 actt_0841 actt_0842 actt_0843 actt_0844 actt_0845 actt_0846 actt_0847 ///
        actt_0848 actt_0849 actt_0860 actt_0864 actt_0865 actt_0866 actt_0867 actt_0869 actt_0870 actt_0871 ///
        actt_0872 actt_0873 actt_0884 actt_0912 actt_0935 actt_0999 actt_1001 actt_1003 actt_1006 actt_1008 ///
        actt_1009 actt_1011 actt_1013 actt_1015 actt_1017 actt_1018 actt_1023 actt_1025 actt_1026 actt_1034 ///
        actt_1038 actt_1040 actt_1044 actt_1052 actt_1070 actt_1072 actt_1074 actt_1075 actt_1090 actt_1093 ///
        actt_1097 actt_1098 actt_1099 actt_1100 actt_1101 actt_1102 actt_1103 actt_1106 actt_1107 actt_1108 ///
        actt_1109 actt_1110 actt_1111 actt_1112 actt_1113 actt_1114 actt_1117 actt_1118 actt_1119 actt_1120 ///
        actt_1121 actt_1122 actt_1123 actt_1124 actt_1127 actt_1128 actt_1130 actt_1131 actt_1132 actt_1133 ///
        actt_1134 actt_1135 actt_1136 actt_1137 actt_1145 actt_1150 actt_1151 actt_1195 actt_1228 actt_1229 ///
        actt_1231 actt_1232 actt_1233 actt_1234 actt_1235 actt_1236 actt_1237 actt_1239 actt_1242 actt_1249 ///
        actt_1256 actt_1258 actt_1259 actt_1260 actt_1261 actt_1263 actt_1264 actt_1265 actt_1266 actt_1267 ///
        actt_1270 actt_1271 ///
		(HHI = ///
        ivbl_0001 ivbl_0005 ivbl_0007 ivbl_0030 ivbl_0059 ///
		)	 ///
		, fe bw(4) rob	
est store col9

*--------------------------------------------------------------------------------------------------------------
*display table 3
*--------------------------------------------------------------------------------------------------------------
esttab *, not b(%9.4f) ///
keep(FLTIME FREQ ASIZE MASS TPR SLOT HUB AGE FLMOD HHI LCC FUELP_2ylag FUELP_3ylag FUELP_4ylag TREND) ///
order(FLTIME FREQ ASIZE MASS TPR SLOT HUB AGE FLMOD HHI LCC FUELP_2ylag FUELP_3ylag FUELP_4ylag TREND)
*--------------------------------------------------------------------------------------------------------------








